Avidemux Forum

Avidemux => Main version 2.6 => Topic started by: hello2you on January 05, 2014, 12:18:55 PM

Title: PCM_S16LE stereo audio to AAC in MP4 not working anymore
Post by: hello2you on January 05, 2014, 12:18:55 PM
Hello,

unfortunately V2.6.7 (Windows) doesn't seem to support converting PCM_S16LE stereo audio to AAC (Faac) when saving to MP4 (not V2) anymore. I've also tried r8999 without success. It worked with V2.6.6.

I typically use FFMPEG to create the input files for Avidemux the following way (this reduces audio sync trouble):
ffmpeg -i InFile -acodec pcm_s16le -vcodec ffv1 OutFile.avi

When I play such a file in Avidemux V2.6.7 r8999, I can't hear any sound. However, the menu item Audio->Select Track shows the correct track. When I save to MP4 with  AAC (Faac), the resulting file has no audio track at all according to VLC.

By the way: I love Avidemux. And the stability on Windows is really much better now, so your efforts were successful!
Title: Re: PCM_S16LE stereo audio to AAC in MP4 not working anymore
Post by: mean on January 05, 2014, 04:25:36 PM
I just tried, seems to work fine with plain PCM / Stereo / 16 bits
Do you mean reverted PCM like the ones found on DVD ? (can never remember if they are LE or BE)
A sample file would help

Title: Re: PCM_S16LE stereo audio to AAC in MP4 not working anymore
Post by: hello2you on January 05, 2014, 05:24:06 PM
Thanks for the fast reply. I've uploaded an example here (21MB, just click on "download file"):
http://wikisend.com/download/389490/example.avi

It's a short TV record converted with FFMPEG (see original post). VLC plays the sound, Avidemux doesn't.
Title: Re: PCM_S16LE stereo audio to AAC in MP4 not working anymore
Post by: mean on January 05, 2014, 06:24:49 PM
The problem is reading the file, it cannot read the audio track properly
Title: Re: PCM_S16LE stereo audio to AAC in MP4 not working anymore
Post by: hello2you on January 05, 2014, 06:51:25 PM
In case it helps; this is the FFMPEG version I used (Windows):

ffmpeg version N-59565-g70937d9 Copyright (c) 2000-2014 the FFmpeg developers
  built on Jan  4 2014 22:01:56 with gcc 4.8.2 (GCC)
Title: Re: PCM_S16LE stereo audio to AAC in MP4 not working anymore
Post by: mean on January 06, 2014, 07:02:41 AM
Fixed with r9000
Title: Re: PCM_S16LE stereo audio to AAC in MP4 not working anymore
Post by: hello2you on January 06, 2014, 09:34:13 AM
Great, thank you very much.